package thread;

public class Demo18 {
    public static int count = 0;

    private static Object locker = new Object();
    public static void main(String[] args) throws InterruptedException {
        Thread t1 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                synchronized (Demo18.class) {
                    count++;
                }

            }
        });
        Thread t2 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                synchronized (Demo18.class) {
                    count++;
                }
            }
        });
        t1.start();
//        t1.join();
        t2.start();
//
        t1.join();
        t2.join();
        System.out.println(count);
    }
}
